Open the standard Windows Control Panel and navigate to > Windows Defender Firewall .

After applying these fixes, look at your Radmin VPN user interface. A healthy, fully optimized connection will display a or an explicit Direct status next to your friend's or coworker's IP address.

Head to the official Radmin VPN website and download the latest version.

If the above steps don't resolve the issue, you may need to employ more advanced troubleshooting techniques. These include:

Windows often prioritizes your physical internet adapter over the Radmin virtual adapter, which can cause connection routing issues. Setting the metric to 1 forces Windows to prioritize the Radmin network for gaming traffic. Radmin Club Control Panel Network and Sharing Center Change adapter settings Right-click the Radmin VPN adapter and select Properties Internet Protocol Version 4 (TCP/IPv4) Properties "Automatic metric" in the "Interface metric" box. Restart Radmin VPN and your game. Radmin Club 2. Configure Firewall Exceptions

Q: Why is my Radmin VPN relay TCP not working? A: There are several reasons why Radmin VPN relay TCP may not be working, including incorrect configuration, firewall restrictions, network congestion, and outdated software.

We need to force UDP direct connectivity. We must kill the TCP relay.

Right-click your (Wi-Fi or Ethernet) and choose Properties .

Here are some additional tips and tricks to help you optimize Radmin VPN's relay TCP feature:

A backup mode. Because a barrier (like a strict firewall or strict NAT router) blocks the direct path, Radmin routes your traffic through its own servers to keep you connected, sacrificing speed.

Create a new rule for Radmin VPN using the following details: UDP

For advanced users who want Radmin to give up on TCP faster. This forces the client to retry UDP more aggressively.

: After applying DMZ settings, restart both your router and PC to clear the network cache. 2. Manage Firewalls and Antivirus

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Several factors can contribute to Radmin VPN relay TCP issues. Some of the most common causes include:

Because network setups vary, the root cause could be on your end or your friend's end. It is highly recommended that go through these steps. 1. Configure Windows Defender Firewall

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